In 2001, British designer Stella McCartney burst onto the fashion scene with an unabashedly feminine collection that favored smart tailoring over casual fit. Today, in addition to red-carpet favorites, McCartney’s empire includes handbags, shoes, and lingerie, as well as a celebrated sportswear collaboration with adidas. Effortless and elegant with an edge, the designs stay true to the company’s vegetarian ethos, never featuring real leather, reptile skins, or fur.